Finding the Third Proportional to 140,905.50 and 293,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,905.50 : 293,443.50 = 293,443.50 : x
2. Step 2: Convert to fraction form
   140,905.50/293,443.50 = 293,443.50/x
3. Step 3: Cross multiply
   140,905.50x = 293,443.50 × 293,443.50
4. Step 4: Simplify right side
   140,905.50x = 86,109,087,692.25
5. Step 5: Solve for x
   x = 86,109,087,692.25/140,905.50
6. Step 6: Final answer
   x = 611,112.32